How to run chkdsk as an administrator?

How do you run a program as an administrator within the Command window? Somehow Windows corrupted my SD card and wants to reformat it. (I was not even writing to the card. Just in and out of sleep mode with the card inserted in the reader).

Anyway, I am trying to recover the card with the chkdsk command but I need Administrator rights to run it and there is no 'right-click Run as administrator' option in the menu.